books.google.com - When and how were cities born? Does urbanization foster innovation and economic development? What was the level of urbanization in traditional societies? Did the Industrial Revolution facilitate urbanization? Has the growth of cities in the Third World been a handicap or an asset to economic development?...http://books.google.com/books/about/Cities_and_Economic_Development.html?hl=it&id=Cg7JYZO_nEMC&utm_source=gb-gplus-shareCities and Economic Development